diff --git a/graphene_sqlalchemy/tests/test_query.py b/graphene_sqlalchemy/tests/test_query.py
index 146c54e6..fc4ccc14 100644
--- a/graphene_sqlalchemy/tests/test_query.py
+++ b/graphene_sqlalchemy/tests/test_query.py
@@ -11,7 +11,7 @@
 from ..utils import sort_argument_for_model, sort_enum_for_model
 from .models import Article, Base, Editor, Hairkind, Pet, Reporter
 
-db = create_engine("sqlite:///test_sqlalchemy.sqlite3")
+db = create_engine("sqlite://")  # use in-memory database
 
 
 @pytest.yield_fixture(scope="function")